Over the past decade, the Blankfein Foundation has given away an average of $1.3 million annually. However, the extent of the Blankfeins' giving may go beyond what the foundation reports, said Rockefeller Philanthropy Advisors CEO Melissa Berman. "It's impossible to tell from the family foundation information the scope of what Lloyd Blankfein and his family care about," said Berman, "because I think we're only seeing a tiny fraction of what they're giving."